Well-cylinder.



A. L. LIGON.

WELL CYLINDER APPLIOATION FILED 11mm, 1912.

Patented Sept. 16, 1913.

2 SHEETS-SHEET 1.

/NVENTOR rito lillllhl CQLUMBU'x PLANOGRAPH`C0., WASHINGTON. D. C.

A. L. LIGON.

WELL CYLINDER.

APPLIGATION FILED JUNE4, 1912.

Patented Sept. 16, 1913.

` 2 SHEETS-SHEET 2.

IIIIIIIIIIIIIIIIII .IIIIIIIIII WITNESSES INVENTOR AYRLY finge "L COLUMBIA PLANOGRAPH 0., WASHINGTON. D. C

ARTHUR LEE LIGON, OF TEE-ICOS, TEXAS.

WELL-CYLINDER.

Specification of Letters Patent.

Patented Sept. 16, 1913.

Application sied June 4, i912. serial No. 7o1,5ss.

To all wiz-om t may concern:

Be it known that I, ARTHUR L. LiGoN, a citizen of the United States, residing at Pecos, in the county of Reeves and State of Texas, have invented certain new and useful Improvements in Well- Cylinders, of

be removed without diiiiculty and without the use of special tools.

With the above and other objects in view,

' this invention consists in general of certain novel constructions, combinations and arrangements of parts, as will be hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like char acters of reference indicate like parts in the several views, and Figure 1 is a vertical section through a pump constructed in accordance withV this invention. Fig. 2 is a side elevation thereof. Fig. 3 is a sect-ion of the outer casing of such a pump. Fig. 4 is a section through the casing and working barrel with the piston and attached parts shown in elevation. Fig. 5 -is an enlarged detail Vsection through the piston. 'Fig. 6 is an enlarged detail section of `a certain packing device and valve arrangement. used in connection herewith. Fig. 7 is asection on the line 7 7, Fig. 1. F ig. 8 isa section on the line j8--8, Fig.6. p

In the present embodiment of the invention there is disclosed awell tube 10 of the ordinary sectional type and at the lower end of this tube there is provided an inverted frusto-conical `pipe-fitting 11 which is screwed on the tube and which is provided interiorly with a series of ribs 12 extending around the same adjacent the bottom. `To the lower end of this tting llis attached a sect-ion of tubing 13, preferably of the same size as the tubing 10 and on the lower end of this member 13 isa second inverted frusto'- conical iitting 14 but it is to be noted that this second litting 14 has its major diameter substantially the same as the minor diameter of the fitting 11. Below the fitting 14 may be provided, if desired, a tube 15, although if thetting 14 itself is immersed in the water this tube is unnecessary. Seated in the fitting 14 is a packing valve device which comprises a cylindrical body portion 16 having a reduced end 17 below the body, this end being threaded exteriorly as at 1S at its lower extremity. Above the body 16 there is provideda flange 19 and in spaced relationto this flange 19 is a cup-shaped head 20 wherein is screwed the barrel 21 of the pump. Within the cup-shaped head 2O is a threaded boss 22 whereon is screwed a valve cage 23 having open sides and being provided with a centrally disposed guide opening 24 in its bridge 25. Through the body from end to end extends a passage 26. Mounted upon the reduced portion 17 of the body is a ring 27 having a frusto-conical lower end28 and being provided with a series of port openings 19. Screwed upon the threaded portion of the end 17 is a second ring 30 ofinverted frusto-conical form and having the same degree of taper as the interior at the tting 14. This ring is also provided with a series of port openings as indicated at 31 and its smaller end is equipped with a plurality of lugs 32 to enable the same to be tightened up with a suitable tool. Surrounding the reduced frustoconical lower partofthe ring 27 is a cup packing 33, of leather or the like, and the edges of this packing extend between the two rings 27 and 30 and are clamped in position by the-ring 30. 4'Surrounding the body 1G is an annular valve disk 34 on the lower face of which is provided a suitable packing 35 suchas leather or the like, and this packing is held in position by means of an annular washer 36 held on the valve disk by a screw `37. It is to be noted that the maximum Vdiameter of the entire device as thus assembledis less than the minimum diameter interiorlyr of the pipe-tting 11.

Above the boss 22 there is mounted in the cage 23 a valve 38, having on its surface a packing 39 of leather or the like, and this f packing `is held in position by means of a washer 40 and screw 41. The upper end of the barrel `21 is screwed into the ring 42. This ring forms the lower portion of a frusto-conical member 43 provided with latj reciprocably mounted in said barrel, dogs carried by one of said plugs, ribs on said casing releasably engaged by said dogs, and means to release said dogs, said means including a hollow piston rod connected to said piston, a cam block on said rod to engage said dogs, each of said plugs being provided with a centrally disposed passage and a series'of annularly disposed ports surrounding said passages, said rod passing through one of said passages and carrying a valve cage abovel the upper plug, a valve ycage on the lower plug, valves in said cages,

and ring valves covering saidV ports.

el.. Ina pump of the Class described, a casing including a pairof seats, plugs fitting in said seats, a .barrel carried by said plugs,

`the lower plug comprising a tubular body portion having a head at its upper end with which said barrel is connected, a Hange 4 formed adjacent said head, the lower end of said body portion being reduced to form an abutment intermediate the length of said body portion, conical rings mounted upon l the lower end portion of said body portion and provided with alined openings, a valve disk mounted upon said body portion above said conical rings for closing the openings formed therein, said iiange limiting the upward movement of said valve disk, a valve housing carried by said body portion within said barrel, a valve in said housing, a piston mounted in said valve, and a piston rod entering said valve for operating said piston.

5. In a pump of the class described, a casing including a pair of seats, plugs fitting in said seats, a barrel carried by said plugs, the upper plug comprising a tubular body portion, a flange adjacent the upper end of said body portion, a conical ring rigidly mounted upon the lower end portion of said body portion and provided with lateral ports terminating in openings passing through the upper face of said ring, said ports communicating with the space between said casing and valve, locking pawls pivotally mounted in said ports and normally held in engagement with the upper seat, a ring mounted upon said body portion above said conical ring and provided with openings positioned in alinement with the openings leading from said ports, a valve disk slidably mounted upon said body portion for vnormally closing the openings of said second ring, said flange limiting the upward movement of said valve disk, a hollow piston slidably mounted in said Valve, a hollow piston rod passing through said body portion and connected with said piston, means carried by said piston rod for moving said pawls out of engagement with said upper seat, and a valve carried by said piston rod above said upper plug.

6, In a pump of the class described, a casing including plug seats in spaced relation, plugs fitting in said seats, a barrel carried by said plugs, said upper plug being provided with ports communicating with the interior of said barrel and with the space between said valve and casing, a valve carried by the lower plug for controlling the passage of liquid through said casing, a valve carried by said lower plug within said barrel, a valve carried by said upper plug for controlling the passage of liquid through said casing, a hollow piston slidably mounted in said barrel, a hollow piston rod passing through said upper plug and connected with said piston, and a valve carried by said hollow piston rod above said upper plug.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

ARTHUR LEE LI'GON.

Witnesses:

R. C. ANDERSON, N. J. FORD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

